A red snapdragon (RR) is crossed with a white snapdragon (rr); the F1 are all pink (Rr).
Which best describes the inheritance pattern shown?
- A
Epistasis: one gene masks expression of another.
- B
Codominance: both alleles are fully expressed in the heterozygote.
- Ccheck_circle
Incomplete dominance: heterozygotes show an intermediate phenotype.
- D
Multiple alleles: more than two alleles exist for the gene.
Explanation
In incomplete dominance, neither allele is fully dominant; heterozygotes display an intermediate phenotype (pink), distinct from codominance, where both phenotypes appear simultaneously.